TWI889552B - Spinneret strucutre for manufacturing textile yarns - Google Patents

Abstract

The present disclosure provides a spinneret structure for manufacturing textile yarns that includes a main body and a plurality of through holes, and the through holes penetrate the main body. Each of the through holes includes a first channel, a second channel and a third channel, wherein the first channel, the second channel and the third channel are sequentially arranged to form the through hole. An inlet of the first channel is disposed on one side of the main body, and an outlet of the third channel is disposed on another side of the main body, wherein the third channel is cylindrical and an inner diameter of the third channel is D, a length of the first channel is L1, a length of the second channel is L2, a length of the third channel is L3, and a diameter of the inlet is D1. When specific conditions of the spinneret structure for manufacturing textile yarns are satisfied, the service life of the spinneret structure for manufacturing textile yarns can be extended and the product quality can be improved.

Description

Spinning structure for making textile yarn

The present invention relates to a spinning mouth structure, and more particularly to a spinning mouth structure for manufacturing textile yarns.

In recent years, the development of various manufacturing industries has been moving towards environmental protection, recycling and sustainability. The textile industry has therefore begun to pay attention to the development and production of environmentally friendly yarns. Environmentally friendly yarns are usually made of recycled materials and are certified by the Global Recycled Standard (GRS) to ensure that the environmentally friendly yarns can effectively reduce or eliminate the harm and impact on the environment during the production process. An important indicator in GRS is that the proportion of recycled materials in environmentally friendly yarns must be at least 20%.

The recycled materials used to make eco-yarns can be waste plastic products, such as waste fabrics, waste fishing lines, waste offshore fishing nets and waste nearshore fishing nets. These recycled materials contain a large amount of mineral impurities and impurities. The mineral impurities and impurities in the recycled materials have poor fluidity, which often leads to an increase in the fluid pressure in the spinning structure section during the spinning process of the eco-yarn, resulting in poor yarn quality. Even too much mineral impurities and impurities may cause the spinning structure to be blocked, causing the eco-yarn production line to be interrupted. The blocked spindle structure cannot be cleaned, so the spindle structure on the equipment needs to be replaced in order to continue production. Frequent replacement of the spindle structure will increase the equipment maintenance cost.

In view of this, the industry has been striving to develop a device that can effectively solve the problems of increased fluid pressure and clogging of the spinning nozzle structure during the spinning process, and to extend the service life of the spinning nozzle structure to reduce the frequency of replacing the spinning nozzle structure and reduce equipment maintenance costs.

The present invention provides a spinning mouth structure for manufacturing textile yarns, which has a through hole with a specific structural design, thereby the spinning mouth structure for manufacturing textile yarns of the present invention can effectively avoid the increase of fluid pressure and the clogging of the spinning mouth structure for manufacturing textile yarns during the yarn drawing process, and prolong the service life of the spinning mouth structure for manufacturing textile yarns to reduce the equipment maintenance cost.

According to an embodiment of the present invention, a spinning mouth structure for manufacturing textile yarn is provided, which includes a body and a plurality of through holes, wherein the through holes penetrate the body. Each through hole includes a first channel, a second channel and a third channel, the first channel, the second channel and the third channel are connected in sequence to form each through hole, and the first channel has an inlet on one side of the body, and the third channel has an outlet on the other side of the body, wherein the third channel is cylindrical and has an inner diameter of D, a length of the first channel is L1, a length of the second channel is L2, a length of the third channel is L3, and a diameter of the inlet is D1, which meets the following conditions: 2.0 ≤ L3/D ≤ 2.4; L3 ＜ L1 ＜ L2; and D ＜ D1.

According to the spinning mouth structure for manufacturing textile yarns in the embodiment described in the previous paragraph, a cross-section of the first channel of each through hole can be a trapezoid, wherein a lower base of the trapezoid corresponds to the feed inlet, and an upper base of the trapezoid corresponds to a junction of the first channel and the second channel.

According to the spinning mouth structure for manufacturing textile yarns in the embodiment described in the previous paragraph, the trapezoid can be an isosceles trapezoid, and a base angle of the isosceles trapezoid can be between 50 degrees and 75 degrees.

According to the spinning mouth structure for manufacturing textile yarns in the embodiment described in the previous paragraph, the length of the upper base of the trapezoid can be 1.5 mm to 2.5 mm.

According to the spinning mouth structure for manufacturing textile yarns in the embodiment described in the previous paragraph, each through hole has a center, and the distance between the center of any through hole and the center of another through hole adjacent to it can be 10 mm to 30 mm.

According to the spinning mouth structure for manufacturing textile yarns in the embodiment described in the previous paragraph, each through hole inlet has a center, and the distance between the center of any through hole inlet and the center of another through hole inlet adjacent thereto can be 10 mm to 30 mm.

According to the spinning mouth structure for manufacturing textile yarns in the embodiment described in the previous paragraph, a thickness of the main body can be 7 mm to 30 mm.

According to the spinning structure for manufacturing textile yarns in the embodiment described in the preceding paragraph, the length of the first channel of each through hole is L1, and the length of the second channel of each through hole is L2, which can meet the following condition: 6.4 ≤ L2/L1 ≤ 7.6.

According to the spinning mouth structure for manufacturing textile yarns in the above-mentioned embodiment, a material of the main body may include a metal, a metal oxide, a non-metal oxide or a ceramic material.

The spinning mouth structure for manufacturing textile yarn according to the implementation method described in the previous paragraph may further include a plurality of shaping elements, which are arranged on the other side of the main body, wherein each shaping element includes a tubular structure and a pipe, the pipe penetrates the tubular structure, and one end of the pipe of each shaping element is connected to a discharge port of one of the through holes.

The following specific embodiments further illustrate the present invention, which is used to facilitate those skilled in the art to which the present invention belongs, so that the present invention can be fully utilized and practiced without excessive interpretation. These embodiments should not be regarded as limiting the scope of the present invention, but are used to illustrate the materials and methods for implementing the present invention.

Please refer to Figures 1, 2, 3 and 4, Figure 1 shows a schematic diagram of a spinning mouth structure 100 for manufacturing a textile yarn according to an embodiment of the present invention, Figure 2 shows a cross-sectional schematic diagram of the spinning mouth structure 100 for manufacturing a textile yarn according to Figure 1, Figure 3 shows an enlarged view of area 3 of the spinning mouth structure 100 for manufacturing a textile yarn according to Figure 2, and Figure 4 shows an enlarged view of area 4 of the spinning mouth structure 100 for manufacturing a textile yarn according to Figure 3. The spinning mouth structure 100 for manufacturing textile yarns of the present invention comprises a body 110 and a plurality of through holes 120, wherein the through holes 120 penetrate the body 110.

Specifically, the spinning mouth structure 100 for manufacturing textile yarns of the present invention can be used to produce environmentally friendly yarns, especially can be used for the production process of environmentally friendly yarns in which the proportion of recycled materials exceeds 20%. The production process of environmentally friendly yarns can adopt a melt spinning method, which is to melt the environmentally friendly plastic masterbatch containing recycled materials to obtain a molten body, and then press the molten body into the spinning mouth structure 100 for manufacturing textile yarns by high-pressure conveying, and then spray out a thin stream of the molten body, and then cool and solidify to form a solidified filament, and then take up a plurality of solidified filaments to obtain an environmentally friendly yarn.

Each through hole 120 of the spinning structure 100 for manufacturing a textile yarn includes a first channel 121, a second channel 123 and a third channel 125. The first channel 121, the second channel 123 and the third channel 125 are connected in sequence to form each through hole 120, and the first channel 121 has an inlet 122 on one side of the body 110, and the third channel 125 has an outlet 124 on the other side of the body 110, wherein the third channel 125 is cylindrical and has an inner diameter of D, a length of the first channel 121 is L1, a length of the second channel 123 is L2, a length of the third channel 125 is L3, and a diameter of the inlet 122 is D1, which meets the following conditions: 2.0 ≤ L3/D ≤ 2.4; L3 ＜ L1 ＜ L2; and D ＜ D1. In addition, it can meet the following conditions: 6.4 ≤ L2/L1 ≤ 7.6.

Specifically, when the melt is pressed into the spinning structure 100 for manufacturing the spinning yarn, the melt enters the first channel 121, the second channel 123 and the third channel 125 of the through hole 120 from the inlet 122, and then is extruded from the outlet 124 and then cooled and solidified to form a solidified yarn. In detail, the amount of melt received by the inlet 122 of the spinning mouth structure 100 for manufacturing textile yarns needs to meet the delivery amount of the melt delivery pipeline, and the inner diameter of the outlet 124 of the spinning mouth structure 100 for manufacturing textile yarns needs to meet the specification diameter of the solidified yarn, so the through hole 120 has an inner diameter change from the inlet 122 to the outlet 124 to simultaneously meet the feeding stability of the inlet 122 and the specification requirements of the solidified yarn at the outlet 124. In this way, the fluid pressure change at the joint of the delivery pipeline and the spinning mouth structure 100 for manufacturing textile yarns can be reduced, and the production stability can be improved. In addition, the length L3 of the third channel 125 has a ratio to the inner diameter D of the third channel 125, which is the aspect ratio (L3/D) of the third channel 125. When the aspect ratio (L3/D) of the third channel 125 is greater than or equal to 2.0 and less than or equal to 2.4, the risk of clogging of the melt in the through hole 120 can be reduced, thereby extending the service life of the spinning structure 100 for manufacturing textile yarns.

Furthermore, a cross-section of the first channel 121 of each through hole 120 may be a trapezoid, wherein a lower base of the trapezoid corresponds to the feed inlet 122, and an upper base of the trapezoid corresponds to a junction of the first channel 121 and the second channel 123. A length of the upper base of the trapezoid may be 1.5 mm to 2.5 mm. Specifically, the length of the lower base of the trapezoid is equal to the diameter D1 of the feed inlet 122, and the length of the upper base of the trapezoid is equal to the inner diameter of the junction of the first channel 121 and the second channel 123. According to the geometric definition of the trapezoid, the length of the lower base of the trapezoid is greater than the length of the upper base of the trapezoid. In detail, the inner diameter of the first channel 121 gradually decreases from the feed inlet 122 to the junction with the second channel 123. Thereby, the fluid pressure of the melt in the first channel 121 changes gradually, which can avoid pipeline corrosion caused by a sudden change in fluid pressure and is beneficial to the fluid transportation stability of the production process.

Furthermore, the trapezoid may be an isosceles trapezoid, and a base angle of the isosceles trapezoid may be between 50 degrees and 75 degrees. Specifically, the cross section of the first channel 121 is an isosceles trapezoid. Thereby, the uniformity of the fluid flow field of the melt in the first channel 121 can be improved to avoid the quality risk caused by incomplete filling of the melt in the first channel 121.

Each through hole 120 has a center inlet 122, and the distance between the center of any through hole 120 and the center of another through hole 120 adjacent thereto can be 10 mm to 30 mm. Thus, the melt delivery pipeline is diverted to each through hole 120 of the spinning structure 100 for manufacturing textile yarns with better diversion uniformity, which is beneficial to improving process stability.

Furthermore, each outlet 124 of the through hole 120 has a center, and the distance between the center of the outlet 124 of any through hole 120 and the center of the outlet 124 of another through hole 120 adjacent thereto can be 10 mm to 30 mm. Specifically, the axis of the inlet 122 of each through hole 120 overlaps with the axis of the outlet 124, and the flow center path of the molten body from the inlet 122 to the outlet 124 is a straight line. In this way, the flow smoothness of the molten body in the through hole 120 can be improved.

The thickness of the body 110 may be 7 mm to 30 mm. This can increase the structural strength of the spinning structure 100 for manufacturing textile yarns. In addition, a material of the body 110 may include a metal, a metal oxide, a non-metallic oxide or a ceramic material. This can increase the corrosion resistance of the spinning structure 100 for manufacturing textile yarns. Specifically, the material of the body 110 is usually stainless steel or corrosion-resistant stainless steel. When the number of through holes 120 in the body 110 is more, it is necessary to use a material that can withstand high-pressure corrosion. At this time, the material of the body 110 may be a precious metal alloy, aluminum oxide ceramics, titanium oxide ceramics or zirconium oxide ceramics.

Please refer to FIG. 5 and FIG. 6. FIG. 5 shows a cross-sectional schematic diagram of a spinning mouth structure 200 for manufacturing a textile yarn according to another embodiment of the present invention, and FIG. 6 shows an enlarged view of region 6 of the spinning mouth structure 200 for manufacturing a textile yarn according to FIG. 5. As can be seen from FIG. 5 and FIG. 6, the spinning mouth structure 200 for manufacturing a textile yarn of the present invention comprises a body 210 and a plurality of through holes 220, wherein the through holes 220 penetrate the body 210. The spinning mouth structure 200 for manufacturing a textile yarn is similar to the spinning mouth structure 100 for manufacturing a textile yarn, and the same or similar elements and their positions and connection relationships are not further described here. The difference between the spinning mouth structure 200 for manufacturing textile yarn and the spinning mouth structure 100 for manufacturing textile yarn is that the spinning mouth structure 200 for manufacturing textile yarn further includes a plurality of shaping elements 230, which are arranged on the other side of the body 210, wherein each shaping element 230 includes a tubular structure 231 and a pipe 232, the pipe 232 penetrates the tubular structure 231, and one end of the pipe 232 of each shaping element 230 corresponds to a discharge port 224 of a third channel 225 connected to one of the through holes 220. Specifically, a cross section of each pipe 232 can be circular, elliptical, cross-shaped or triangular. Specifically, after the melt is extruded from the outlet 224, the melt thinly flows through the shaping element 230 to undergo a cooling and solidification step, and a cross-sectional shape of the obtained solidified wire corresponds to the cross-sectional shape of the pipe 232. In this way, the structural diversity and functional diversity of the product can be increased.

＜Production data chart＞

Please refer to FIG. 7, which is a production data chart showing the service life and full tube efficiency of the spindle structure 100 for manufacturing textile yarns according to FIG. 1. In detail, the ratio of the length (L3) of the third channel of the spindle structure 100 for manufacturing textile yarns to the inner diameter (D) of the third channel is the aspect ratio (L3/D) of the third channel. When the aspect ratio of the third channel is smaller, the fluid pressure change of the melt in the spindle structure 100 for manufacturing textile yarns is more gentle, and it is not easy to produce the phenomenon of unsmooth flow or blockage, so the service life of the spindle structure 100 for manufacturing textile yarns can be improved. In addition, the full tube efficiency can also be used to evaluate the production efficiency of the spindle structure 100 for manufacturing textile yarns. The full tube efficiency is defined as the ratio of the number of through holes that can produce solidified yarns to the total number of through holes in a spindle structure 100 for manufacturing textile yarns. The higher the full tube efficiency of the spindle structure 100 for manufacturing textile yarns, the higher the ratio of solidified yarns that can be produced in the spindle structure 100 for manufacturing textile yarns. Considering the service life and full tube efficiency of the spinning mouth structure 100 for manufacturing textile yarns, when the aspect ratio of the third channel is in the range of greater than or equal to 2 and less than or equal to 2.4, the service life of the spinning mouth structure 100 for manufacturing textile yarns can be extended and the full tube efficiency can be increased. It can be seen that the spinning mouth structure 100 for manufacturing textile yarns of the present invention can effectively improve the production yield.

In summary, the spindle structure for manufacturing textile yarns of the present invention sets the aspect ratio of the third channel of the through hole within a specific range through the mechanism design, which can effectively avoid the fluid blockage phenomenon during the sand pumping process, and further avoid the pressure increase phenomenon in the spindle structure for manufacturing textile yarns, thereby extending the service life and full tube efficiency of the spindle structure for manufacturing textile yarns, thereby improving the production yield.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined in the attached patent application.

100,200: Spinning mouth structure for manufacturing textile yarn 110,210: Body 120,220: Through hole 121: First channel 122: Inlet 123: Second channel 124,224: Outlet 125,225: Third channel 230: Shaping element 231: Tubular structure 232: Pipeline L1,L2,L3: Length D: Inner diameter D1: Diameter

FIG. 1 shows a schematic diagram of a spindle structure for manufacturing a textile yarn according to an embodiment of the present invention; FIG. 2 shows a cross-sectional schematic diagram of the spindle structure for manufacturing a textile yarn according to FIG. 1; FIG. 3 shows an enlarged view of region 3 of the spindle structure for manufacturing a textile yarn according to FIG. 2; FIG. 4 shows an enlarged view of region 4 of the spindle structure for manufacturing a textile yarn according to FIG. 3; FIG. 5 shows a cross-sectional schematic diagram of a spindle structure for manufacturing a textile yarn according to another embodiment of the present invention; FIG. 6 shows an enlarged view of region 6 of the spindle structure for manufacturing a textile yarn according to FIG. 5; and FIG. 7 shows the production data of the service life and full tube efficiency of the spinning structure for manufacturing textile yarn according to FIG. 1.

100: Spinning structure for making textile yarn

110: Body

120:Through hole

Claims (10)

A spinning mouth structure for manufacturing textile yarns, comprising: a body; and a plurality of through holes, the through holes passing through the body, each of the through holes comprising a first channel, a second channel and a third channel, the first channel, the second channel and the third channel are sequentially connected to form each of the through holes, and the first channel has an inlet on one side of the body, and the third channel has an outlet on the other side of the body, wherein the third channel is cylindrical and has an inner diameter of D, a length of the first channel is L1, a length of the second channel is L2, a length of the third channel is L3, and a diameter of the inlet is D1, which meets the following conditions: 2.0 ≤ L3/D ≤ 2.4; L3 ＜ L1 ＜ L2; and D ＜ D1. As described in claim 1, a spinning mouth structure for manufacturing textile yarns, wherein a cross-section of the first channel of each of the through holes is a trapezoid, wherein a lower base of the trapezoid corresponds to the feed port, and an upper base of the trapezoid corresponds to a junction between the first channel and the second channel. A spinning mouth structure for manufacturing textile yarn as described in claim 2, wherein the trapezoid is an isosceles trapezoid, and a base angle of the isosceles trapezoid is between 50 degrees and 75 degrees. A spinning mouth structure for manufacturing textile yarn as described in claim 2, wherein a length of the upper base of the trapezoid is 1.5 mm to 2.5 mm. A spinning mouth structure for manufacturing textile yarn as described in claim 1, wherein the outlet of each of the through holes has a center, and the distance between the center of the outlet of any one of the through holes and the center of the outlet of another adjacent through hole is 10 mm to 30 mm. A spinning mouth structure for manufacturing textile yarn as described in claim 1, wherein the feed inlet of each of the through holes has a center, and the distance between the center of the feed inlet of any of the through holes and the center of the feed inlet of another of the adjacent through holes is 10 mm to 30 mm. A spinning mouth structure for manufacturing textile yarn as described in claim 1, wherein a thickness of the main body is 7 mm to 30 mm. The spinning structure for manufacturing textile yarn as described in claim 1, wherein the length of the first channel of each of the through holes is L1, and the length of the second channel of each of the through holes is L2, which satisfies the following conditions: 6.4 ≤ L2/L1 ≤ 7.6. A spinning mouth structure for manufacturing textile yarn as described in claim 1, wherein a material of the main body includes a metal, a metal oxide, a non-metal oxide or a ceramic material. The spinning mouth structure for manufacturing textile yarn as described in claim 1 further includes a plurality of shaping elements, which are arranged on the other side of the main body, wherein each of the shaping elements includes a tubular structure and a pipe, the pipe penetrates the tubular structure, and one end of the pipe of each of the shaping elements is connected to the discharge port of one of the through holes.

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